As normal.
Clerics native to Mazer may only select Elishar or Toldoth as a patron (see Theology).
As normal.
The secrets of arcane magic were wrested from the servants of Toldoth by the bone gnomes. In the ages since, that lore has spread to all the races. As a result the only discipline of wizardry found in Ironspace is the way of the necromancer. The schools of Transmutation and Conjuration are unknown, and there are no generalist wizards.
As normal.
Sorcery is a rare gift in Ironspace, received only from the dark powers. Sorcerer's learn their art either directly from fiendish instructors, or acquire it through a heritage linked to such beings. Dealing with dark power leaves a mark upon the sorcerer, as a result they gain a +2 bonus to all Intimidate checks.
As a result of the art's dark source, the first two known spells of each spell level are predetermined, though the sorcerer may choose which of the two to learn first, these spells must be taken at the earliest opportunity in the sorcerer's level advancement. They gain a +1 effective caster level when casting these spells.
Those spells marked with an asterisk (*) are from Relics & Rituals. Those marked with a double asterisk (**) are from Relics and Rituals 2: Lost Lore.